<template>
  <div class="login">
    <el-form
      ref="loginForm"
      :model="loginForm"
      :rules="loginRules"
      class="login-form"
    >
      <h3 class="title">智慧物流</h3>
      <el-form-item prop="username">
        <el-input
          v-model="loginForm.username"
          type="text"
          auto-complete="off"
          placeholder="账号"
        >
          <vab-icon
            slot="prefix"
            icon="user"
            class="el-input__icon input-icon"
          />
        </el-input>
      </el-form-item>
      <el-form-item prop="password">
        <el-input
          v-model="loginForm.password"
          type="password"
          auto-complete="off"
          placeholder="密码"
          @keyup.enter.native="handleLogin"
          show-password
        >
          <vab-icon
            slot="prefix"
            icon="password"
            class="el-input__icon input-icon"
          />
        </el-input>
      </el-form-item>
      <el-form-item v-if="captchaEnabled" prop="code">
        <el-input
          v-model="loginForm.code"
          auto-complete="off"
          placeholder="验证码"
          style="width: 63%"
          @keyup.enter.native="handleLogin"
        >
          <vab-icon
            slot="prefix"
            icon="validCode"
            class="el-input__icon input-icon"
          />
        </el-input>
        <div class="login-code">
          <img :src="codeUrl" class="login-code-img" @click="getCode" />
        </div>
      </el-form-item>
      <el-checkbox
        v-model="loginForm.rememberMe"
        style="margin: 0px 0px 25px 0px"
      >
        记住密码
      </el-checkbox>
      <el-form-item style="width: 100%">
        <el-button
          :loading="loading"
          size="medium"
          type="primary"
          style="width: 100%"
          @click.native.prevent="handleLogin"
        >
          <span v-if="!loading">登 录</span>
          <span v-else>登 录 中...</span>
        </el-button>
        <div v-if="register" style="float: right">
          <router-link class="link-type" :to="'/register'">
            立即注册
          </router-link>
        </div>
      </el-form-item>
    </el-form>
    <!--  底部  -->
    <div class="el-login-footer">
      <!-- <span>Copyright © 2018-2022 ruoyi.vip All Rights Reserved.</span> -->
    </div>
  </div>
</template>

<script>
  import { getCodeImg } from '@/api/login'
  import Cookies from 'js-cookie'
  import { encrypt, decrypt } from '@/utils/jsencrypt'

  export default {
    name: 'Login',
    data() {
      return {
        codeUrl: '',
        loginForm: {
          username: '',
          password: '',
          rememberMe: false,
          code: '',
          uuid: '',
        },
        loginRules: {
          username: [
            { required: true, trigger: 'blur', message: '请输入您的账号' },
          ],
          password: [
            { required: true, trigger: 'blur', message: '请输入您的密码' },
          ],
          code: [
            { required: true, trigger: 'change', message: '请输入验证码' },
          ],
        },
        loading: false,
        // 验证码开关
        captchaEnabled: true,
        // 注册开关
        register: false,
        redirect: undefined,
      }
    },
    watch: {
      $route: {
        handler: function (route) {
          this.redirect = route.query && route.query.redirect
        },
        immediate: true,
      },
    },
    created() {
      this.getCode()
      this.getCookie()
    },
    methods: {
      getCode() {
        getCodeImg().then((res) => {
          this.captchaEnabled =
            res.captchaEnabled === undefined ? true : res.captchaEnabled
          if (this.captchaEnabled) {
            this.codeUrl = 'data:image/gif;base64,' + res.img
            this.loginForm.uuid = res.uuid
          }
        })
      },
      getCookie() {
        const username = Cookies.get('username')
        const password = Cookies.get('password')
        const rememberMe = Cookies.get('rememberMe')
        this.loginForm = {
          username: username === undefined ? this.loginForm.username : username,
          password:
            password === undefined
              ? this.loginForm.password
              : decrypt(password),
          rememberMe: rememberMe === undefined ? false : Boolean(rememberMe),
        }
      },
      handleLogin() {
        this.$refs.loginForm.validate((valid) => {
          if (valid) {
            this.loading = true
            if (this.loginForm.rememberMe) {
              Cookies.set('username', this.loginForm.username, { expires: 30 })
              Cookies.set('password', encrypt(this.loginForm.password), {
                expires: 30,
              })
              Cookies.set('rememberMe', this.loginForm.rememberMe, {
                expires: 30,
              })
            } else {
              Cookies.remove('username')
              Cookies.remove('password')
              Cookies.remove('rememberMe')
            }
            Cookies.set('checkPassWord', encrypt(this.loginForm.password), {
              expires: 30,
            })
            this.$store
              .dispatch('user/login', this.loginForm)
              .then(() => {
                console.log(this.redirect || '/')
                this.$router
                  .push({ path: this.redirect || '/' })
                  .catch(() => {})
              })
              .catch(() => {
                this.loading = false
                if (this.captchaEnabled) {
                  this.getCode()
                }
              })
          }
        })
      },
    },
  }
</script>

<style rel="stylesheet/scss" lang="scss">
  .login {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    height: 100%;
    background-image: url('../../assets/login_images/background.jpg');
    background-size: cover;
  }

  .title {
    margin: 0px auto 30px auto;
    color: #707070;
    text-align: center;
  }

  .login-form {
    position: relative;
    z-index: 9;
    width: 400px;
    padding: 25px 25px 5px 25px;
    background: #ffffff;
    border-radius: 6px;

    .el-input {
      height: 38px;

      input {
        height: 38px;
      }
    }

    .input-icon {
      width: 14px;
      height: 39px;
      margin-left: 2px;
    }
  }

  .login-tip {
    font-size: 13px;
    color: #bfbfbf;
    text-align: center;
  }

  .login-code {
    float: right;
    width: 33%;
    height: 38px;

    img {
      vertical-align: middle;
      cursor: pointer;
    }
  }

  .el-login-footer {
    position: fixed;
    bottom: 0;
    width: 100%;
    height: 40px;
    font-family: Arial;
    font-size: 12px;
    line-height: 40px;
    color: #fff;
    text-align: center;
    letter-spacing: 1px;
  }

  .login-code-img {
    height: 38px;
  }
</style>
